Triplex cranking mechanism.



'0. W. PARKS.

THIPLEX GRANKING MECHANISM.

APPLICATION FILED JULY 26, 1913. 1 1 l ififi im Patented Nov. 17, 1914.

' 3 SHEETS'SHEET 1.

1,117,23&@,

0. W. PARKS.

TRIPLEX GRANKING MECHANISM.

APPLICATION FILED JULY 26, 1913.

Patented Nov. 17,1914.

3 SHEETSSHEET 3.

j UNrrnn snares earner onracn.

CHARLES WALTER PARKS, 01"" POMONA, CALIFORNIA.

TBIPLEX GRANKING MECHANTSM.

Specification of Letters Patent.

Patented Nov. 1?, 1914.

Application filed July 2c, 1913. Serial no. 731,417.

; To all whom it may concern Be it known that I, UHAnLns anner. PARKS, a citizen of the United States, residin at Pomona, in the county of Los Ange es and State of California, have invented a new and useful Triplex Cranking Mechailism; and I do hereby declare the following to be a full, clear, and exact descrip- "tion :of the invention, such as will enable others skilled in the art to which it appertains to make, and use the same.

' This invention relates to a new and useful triplex cranking mechanlsm ltor operating a plurality of plungers or suckers one above the other in a. single cylinder whereby a continuous liquid column may be lifted.

Oneof the features of the invention is the provision ofmeans comprising a plurality of elements so connected to the plurality or plungers and to a single crank shaft, that "three distinct motions may be imparted to i the .plungers. For instance, one plunger connects-substantially direct with the crank shaft receiving a reciprocating motion, while the other two plungers individually receive reciprocating motions alternating with one another, and each in alternation with the first plunger. The secbnd two plungers plurality of plungers.

elevation of Fig. 1. Fig. 1

are connected to the crank shaft by bell crank levers and rod'connections.

' In practical fields the details of construction may necessitate alterations, to which 1 the patentee is entitled, provided the alterations fall within the scope of what is claimed.

The invention comprises further features and combination of parts, as hereinafter set forth, shown in the drawings and claimed.

In the drawings :--Figure 1 is a view in elevation showing the improved cranking mechanism as applied to a pump having a Fig. 2 is a similar view partly in section showing parts of the cranking -mechanismin different positions to those shown in Fig. 1. Fig. 3 is an edge is a plan "view of Fig. 1. Fig. 5 is a sectional view On line 55-0f Fig. 1. Fig. 6 is a detail pers ective view of portions or parts of the .cran in mechanism. Fig. 7 is a transverse sectiona view on line 7-7 of Fig. 3.

' -Referring more particularly to the draw- "ings, 1 designates a tramewhich may be of any suitable shape or construction, preferably triangular in side View, as shown in Fig. 1 having the supports 2, which are vided with guides 3, in which the cross heads 4 5 and 6 are mounted. Mounted in bearlngs 7 of the frame, there being cap plates 8 secured by bolts 9,'is a crank shaft 10. Connecting substantially the central portion of the crank pin 11 of the crank shaft is a pitman 12, which connects at 13 to the pins 141- of the cross head 4. The cross head 4. is provided with a plunger rod 15, which telescopes the cross head 5 and the tubular plunger rod 16, and to its lower end a plunger 17 is connected. The hollow plunger rod 16 telescopes the cross head 6 and the hollow plunger rod 18, and is provided with a plunger 19, which isinterposed between the plunger 17 and the plunger 20,

which plunger 20 is carried at the lower end F I of the plunger rod '18. The plungers 17,

19 and20 operate in a single cylinder 21 as shown, and are designed to rece1ve distinct reciprocating motions whereby a continuous liquid column may he lifted.

Jonrnalod in bearings 22 at one side of the frame as shown in Fig. 1 are the pintles 23 of the bell crank lever 2%, which comprises the arms and 26. The arms 25 are connected at 27 and terminate in lugs 28, in bearings of which a pin 29 is arranged. Connecting the pin 29 and the crank pin 11 on one side of its center is a link 30. The

arms 26 of the bell crank lever 24: are con- Mounted in bearings 37 of the frame are the pintles 38 of the bell crank lever 39, the

arms 40 of which are connected by the transverse ba r 4.1 and terminate in extension arms 42 having lugs 43, to which the pitinan rods 14% are pivoted. The pltman rods 44 are in turn. pivoted to the lugs 45 of the cross head 6. The arms 47 of the bell crank lever 39 are connected as at 48 having lugs l9, in bearings of which a pin 50 1s arranged. Connecting the pin 50 and the crank pin 11 is a link 51, whereby motion may be imparted to the bell crank lever 89. It will be observed that as the crank shaft eperates, it raises and lowers-the plunger 1111;: \ennection eenneting crank Lever frame and said s wit, a second member recipreeeied mouneed in said a red eenneetien with ef one the bell crank iever second member designed to W s: ,eend element, third member U be reeiproezatec i mounted in said ice and having 2; :0(1 connection with end ef the other bell emu lever frame,

xird l'nember achpted to actuate a F flemenfi, a. gear on one end of the she t, and a crank and pinion for 0p- "aid anal the crankshaft and bell crank lever frames, which in turn ate the seveizi members.

. 1 'tevtimeny whereof I RWQ signed my u-nne to this specification in the presence M 1 nu snbsembmg valtnesees.

im'er p:

i red ,v

11 .131; BRELL, 511mm 

